38 lines
1.3 KiB
Go
38 lines
1.3 KiB
Go
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package model
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import (
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"github.com/df-mc/dragonfly/server/block/cube"
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"github.com/df-mc/dragonfly/server/world"
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)
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// Trapdoor is a model used for trapdoors. It has no solid faces and a bounding box that changes depending on
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// the direction of the trapdoor.
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type Trapdoor struct {
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// Facing is the facing direction of the Trapdoor. In addition to the texture, it influences the direction in which
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// the Trapdoor is opened.
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Facing cube.Direction
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// Open and Top specify if the Trapdoor is opened and if it's in the top or bottom part of a block respectively.
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Open, Top bool
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}
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// BBox returns a physics.BBox that depends on the facing direction of the Trapdoor and whether it is open and in the
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// top part of the block.
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func (t Trapdoor) BBox(cube.Pos, world.BlockSource) []cube.BBox {
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if t.Open {
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return []cube.BBox{full.ExtendTowards(t.Facing.Face(), -0.8125)}
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} else if t.Top {
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return []cube.BBox{cube.Box(0, 0.8125, 0, 1, 1, 1)}
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}
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return []cube.BBox{cube.Box(0, 0, 0, 1, 0.1875, 1)}
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}
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// FaceSolid returns true if the face is completely filled with the trapdoor.
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func (t Trapdoor) FaceSolid(_ cube.Pos, face cube.Face, _ world.BlockSource) bool {
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if t.Open {
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return t.Facing.Face().Opposite() == face
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} else if t.Top {
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return face == cube.FaceUp
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}
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return face == cube.FaceDown
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}
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